setup.py

from setuptools import setup, Extension, find_packages
from setuptools.command.build_ext import build_ext as _build_ext
import os

includes = ['pypesq']
try:
    import numpy as np
    includes += [os.path.join(np.get_include(), 'numpy')]
except:
    pass

extension = Extension("pesq_core",
                      sources=["pypesq/pesq.c", "pypesq/dsp.c", "pypesq/pesqdsp.c",
                               "pypesq/pesqio.c", "pypesq/pesqmain.c", "pypesq/pesqmod.c"],
                      include_dirs=includes,
                      language='c')


class build_ext(_build_ext):
    def finalize_options(self):
        _build_ext.finalize_options(self)
        try:
            __builtins__.__NUMPY_SETUP__ = False
        except AttributeError:
            print("Cannot set '__builtins__.__NUMPY_SETUP__ = False' This is not needed if numpy is already installed.")

        import numpy
        self.include_dirs.append(numpy.get_include())


setup(name='pypesq',
      version='1.2.4',
      description="A package to compute pesq score.",
      url='https://github.com/vBaiCai/python-pesq',
      author_email='zhuroubaicai@gmail.com',
      keywords=['pesq', 'speech', 'speech quality'],
      license='MIT',
      packages=find_packages(),
      ext_modules=[extension],
      cmdclass={'build_ext': build_ext},
      setup_requires=['numpy'],
      py_modules=['numpy'],
      zip_safe=False,
      install_requires=['numpy'],
      python_requires='!=3.0.*, !=3.1.*, !=3.2.*, <4',
      )